This study relates to a mathematical tool, based in chemistry and physics, which can quickly and accurately predict the emission rate of HCN from surface water into the air. Such information on HCN emission rates is crucial in order for governments or other organizations to respond quickly and effectively to incidents of hazardous release of HCN, or to make scientifically sound decisions when planning projects that involve HCN. Specifically, this study examines the principle factors which affect the emission rate of HCN from surface water into the air. |